FWIW, you shouldn't need (and don't want) those single quotes around the ez_pages_id (assuming it's still an int(11) database type). That is, instead of


$sql = "SELECT e.*, et.* FROM " . TABLE_EZPAGES . " e, " . TABLE_EZPAGES_TEXT . " et WHERE e.pages_id = '" .(int)$ezpage_id. "' AND et.languages_id = '" . (int)$_SESSION['languages_id'] . "' AND e.pages_id = et.pages_id";
the code should read:

$sql = "SELECT e.*, et.* FROM " . TABLE_EZPAGES . " e, " . TABLE_EZPAGES_TEXT . " et WHERE e.pages_id = " .(int)$ezpage_id. " AND et.languages_id = '" . (int)$_SESSION['languages_id'] . "' AND e.pages_id = et.pages_id";